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| Analysis on the law of erosion rock movement and support adaptability of 8128 fully mechanized working face in Xinjing Coal Mine |
| Wang Xiaohan |
| Xinjing Company, Huayang Group Yangquan 045000, China |
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Abstract In order to grasp the rock movement and strata behavior law of 8218 working face in Xinjing Mine during mining, RFPA numerical simulation software was used to analyze the rock movement law, and the movement law and caving characteristics of direct roof and basic roof were obtained. During the mining of the working face, the strata behavior law and support adaptability are analyzed by arranging the mine pressure monitoring station, and the initial weighting and periodic weighting step distance of the basic roof are determined by comprehensive numerical simulation and mine pressure monitoring data. The results show that the initial weighting and periodic weighting steps of the working face are 42.1 m and 12.03 m, respectively. ZY5000-16/35 hydraulic support has good adaptability, and the initial support force of the hydraulic support is insufficient during mining, so it is necessary to strengthen management.
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